Electron gun for cathode ray tube

Details Electron gun for cathode ray tube Electron gun for cathode ray tube

1995-12-12

1998-05-05

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313414, 313421, 315 14, H01J 2946, H01J 2970

Patent

active

057479259

ABSTRACT:
The triode portion of an electron gun includes a cathode having an electron emitting material layer and a control electrode in which a through hole portion having a plurality of through holes for passing an electron beam is formed on a surface facing the electron emitting material layer so that the life span of the cathode can be prolonged.

REFERENCES:
patent: 5180945 (1993-01-01), Kweon
patent: 5600201 (1997-02-01), Yun et al.

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